[Server] Add Support for Sampling Groups to CustomNodeManager

Applications/ConsoleReferenceServer/Program.cs

@@ -63,6 +63,7 @@ public static async Task<int> Main(string[] args)
             bool appLog = false;
             bool renewCertificate = false;
             bool shadowConfig = false;
+            bool samplingGroups = false;
             bool cttMode = false;
             string password = null;
             int timeout = -1;
@@ -78,6 +79,7 @@ public static async Task<int> Main(string[] args)
                 { "r|renew", "renew application certificate", r => renewCertificate = r != null },
                 { "t|timeout=", "timeout in seconds to exit application", (int t) => timeout = t * 1000 },
                 { "s|shadowconfig", "create configuration in pki root", s => shadowConfig = s != null },
+                { "sg|samplinggroups", "use the sampling group mechanism in the Reference Node Manager", sg => samplingGroups = sg != null },
                 { "ctt", "CTT mode, use to preset alarms for CTT testing.", c => cttMode = c != null },
             };
 
@@ -127,6 +129,12 @@ public static async Task<int> Main(string[] args)
                 // Create and add the node managers
                 server.Create(Servers.Utils.NodeManagerFactories);
 
+                // enable the sampling groups if requested
+                if (samplingGroups)
+                {
+                    Quickstarts.Servers.Utils.UseSamplingGroupsInReferenceNodeManager(server.Server);
+                }
+
                 // start the server
                 output.WriteLine("Start the server.");
                 await server.StartAsync().ConfigureAwait(false);

Applications/Quickstarts.Servers/ReferenceServer/ReferenceNodeManager.cs

@@ -50,8 +50,8 @@ public class ReferenceNodeManager : CustomNodeManager2
         /// <summary>
         /// Initializes the node manager.
         /// </summary>
-        public ReferenceNodeManager(IServerInternal server, ApplicationConfiguration configuration)
-            : base(server, configuration, Namespaces.ReferenceServer)
+        public ReferenceNodeManager(IServerInternal server, ApplicationConfiguration configuration, bool useSamplingGroups = false)
+            : base(server, configuration, useSamplingGroups, Namespaces.ReferenceServer)
         {
             SystemContext.NodeIdFactory = this;
 

Applications/Quickstarts.Servers/ReferenceServer/ReferenceServer.cs

@@ -52,6 +52,19 @@ public partial class ReferenceServer : ReverseConnectServer
         #region Properties
         public ITokenValidator TokenValidator { get; set; }
 
+        /// <summary>
+        /// If true the ReferenceNodeManager is set to work with a sampling group mechanism
+        /// for managing monitored items instead of a Monitored Node mechanism
+        /// </summary>
+        public bool UseSamplingGroupsInReferenceNodeManager
+        {
+            get => m_useSamplingGroups;
+            set
+            {
+                m_useSamplingGroups = value;
+            }
+        }
+
         #endregion
 
         #region Overridden Methods
@@ -70,7 +83,7 @@ protected override MasterNodeManager CreateMasterNodeManager(IServerInternal ser
             IList<INodeManager> nodeManagers = new List<INodeManager>();
 
             // create the custom node manager.
-            nodeManagers.Add(new ReferenceNodeManager(server, configuration));
+            nodeManagers.Add(new ReferenceNodeManager(server, configuration, UseSamplingGroupsInReferenceNodeManager));
 
             foreach (var nodeManagerFactory in NodeManagerFactories)
             {
@@ -449,6 +462,7 @@ private IUserIdentity VerifyIssuedToken(IssuedIdentityToken issuedToken)
 
         #region Private Fields
         private ICertificateValidator m_userCertificateValidator;
+        private bool m_useSamplingGroups;
         #endregion
     }
 }

Applications/Quickstarts.Servers/Utils.cs

@@ -34,6 +34,7 @@
 using System.Reflection;
 using Opc.Ua;
 using Opc.Ua.Server;
+using Quickstarts.ReferenceServer;
 
 namespace Quickstarts.Servers
 {
@@ -97,6 +98,14 @@ public static void AddDefaultNodeManagers(StandardServer server)
             }
         }
 
+        /// <summary>
+        /// Add all available node manager factories to the server.
+        /// </summary>
+        public static void UseSamplingGroupsInReferenceNodeManager(ReferenceServer.ReferenceServer server)
+        {
+            server.UseSamplingGroupsInReferenceNodeManager = true;
+        }
+
         /// <summary>
         /// The property with available node manager factories.
         /// </summary>